(a(i))[2]
State the mean age of the cars.
(a(ii))[2]
Complete the scatter diagram. The first six points have already been plotted for you.
(a(iii))[1]
What kind of correlation is displayed by the scatter diagram?
(a(iv))[1]
Draw the line of best fit onto the scatter diagram.
(a(v))[1]
Use your line of best fit to estimate the total distance travelled by a 6-year-old car.
(a(vi))[1]
Explain how the scatter diagram shows this.
(b(i))[2]
Find the simplest form of the ratio small cars : medium cars : large cars.
(b(ii))[2]
Calculate how much Ana pays for the car.
(b(iii))[3]
Work out how much more it costs to buy the car by using Plan B instead of Plan A.